Something has emerged from the lake waters of Houston to slaughter partying campers. A special unit of the FBI is dispatched to investigate and stop the murders. The Unnatural Perpetrator Department, division of the FBI, is a unit of agents that specialize in the mystical, the occult, and the divine. They are tasked with hunting and stopping serial killers of 'unnatural origins.'

Enter Agent Dianna Saferstein, a gifted criminal profiler from a mundane background. She must come to terms with the existence of magic, faerie co-workers, and stop an uncontrollable killing machine that has a taste for the brains of its victims.

Written by James Lief & Reed Alexander